/Engine/Plugins/Runtime/MassEntity/Source/MassEntity/Public/MassArchetypeTypes.h
FMassArchetypeEntityCollection ( const [FMassArchetypeHandle](API\Plugins\MassEntity\FMassArchetypeHandle) & InArchetypeHandle, const [EInitializationType](API\Plugins\MassEntity\FMassArchetypeEntityCollection\EInitializationType) Initialization )